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Vega NB-13 / User Manual
11
Revision 06 of 24 January 2022
the ground of the devices, thus, for connection, at least 3 wires are required: GND,
RS485_A/RS232Tx, RS485_B/RS232Rx.
The modem can power up the ModBus device connected to it before polling it, for this
use the "+8V" contact.
1-Wire interface allows to connect there up to 10 temperature sensors (see details in part
4).
There are two security inputs on the board. The device monitors status changes on the
security inputs and when the security input triggers, the device is activated and sends an alarm
message to the network.